<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="app">
      <ul>
        <li v-for="(item,index) in list" :key="item.id">
            {{ item.name }}
        </li>
      </ul>
      <button @click="gos">走一走</button>
    </div>
    <script src="./vue.js"></script>
    <script>
      const app = new Vue({
        el: "#app",
        data: {
          list: [
            { id: 1, name: "帅哥" },
            { id: 2, name: "美女" },
            { id: 3, name: "程序猿" },
          ],
        },
          methods: {
            gos(){
                this.list.push(this.list.shift());
            }
          },
        })
    </script>
  </body>
</html>
